Optical Systems Design OSD2258 Series Operator's Manual page 27

TOPOLOGY CHECK - <tc> Command Line
In this case, only one OSD2258 is connected to the USB cable. The display indicates the following;
No: 1 – Number of units connected on the ring/bus (in this case only one unit)
MAC_ADDRESS: Displays all the MAC addresses of the units connected on the ring/bus
TOPOLOGY: Displaying type of connection (in this case "Init" as there is only one unit)
NODE_ROLE: MASTER – Displays whether the unit is either the Master or Slave on the ring/bus (in
this case only one unit is connected thus displaying master). The Master unit is determined by the unit
with the lowest MAC address
RING_P0: Indicates the function of port 3 and its relation to the ring/bus. There are four possibilities;
1. M_port – Master Port (port facing the master)
2. S_port – Slave Port (port back to the master)
3. B_Port – Backup Port
4. U_Port – Unconnected Port
RING_P1: Indicates the function of port 4 and its relation to the ring/bus. There are four possibilities;
1. M_port – Master Port
2. S_port – Slave Port
3. B_Port – Backup Port
4. U_Port – Unconnected Port
<-local: This points to the unit that the USB cable is plugged into on the ring/bus. Also displays IP
address, Device and Location
In the example below there are four OSD2258 connected in a ring configuration.
PAGE 27
OPTICAL SYSTEMS DESIGN
FIGURE 24: TOPOLOGY CHECK
OSD2258 OPERATOR MANUAL
DOC ID: 10119701